Molecular orbital studies of enzyme activity. 2. Nucleophilic Attack on Carbonyl Systems with Comments on Orbital Steering

Authors

Steve Scheiner, Utah State UniversityFollow
William N. Lipscomb, Harvard University
Daniel A. Kleier, Williams College

Document Type

Article

Journal/Book Title

Journal of the American Chemical Society

Publication Date

8-1976

Publisher

American Chemical Society

Volume

98

Abstract

Molecular orbital (MO) theory is applied to the study of several reactions involving nucleophilic attack at a carbonyl group. Nucleophile-carbonyl systems studied are F^- + FCHO, OH^- + FCHO, CH₃O^- + H₂NCHO, NH₃ + HCHO, CH₃0H + HCOOH, and CH₃OH + HC(OH)₂⁺. The MO calculations are carried out at the minimum basis set level using the Partial Retention of Diatomic Differential Overlap (PRDDO) procedure. In order to assess the error associated with the minimum basis set, several calculations are repeated using an extended 4-31G basis set. The results are discussed with a critical eye toward the concept of “orbital steering”.

Comments

Originally published in The Journal of the American Chemical Society by the American Chemical Society. Publisher’s PDF available through remote link. DOI: 10.1021/ja00432a014

Recommended Citation

Nucleophilic Attack on Carbonyl Systems with Comments on Orbital Steering S. Scheiner, W. N. Lipscomb, and D. A. Kleier J. Am. Chem. Soc., 1976 98 (16), 4770-4777.